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The process of deleting "friends" from one's Facebook list.
Brian: I have like 1000 friends

Trent: I hope you're exaggerating...Dude, you need to do some Facebook cleaning

Brian: Truer words have yet to be spoken.
by Brorack Brobama February 10, 2010
the process of leaving groups that you have been in too long/don't like anymore
dude your still in that group? you need to do some facebook cleaning
by Harrison Schroeder March 14, 2008